Electrical breakers are sized by the conductor that is connected to it. The conductor is sized by the current that is drawn by the circuit. The formula for amperage is I = W/E. Amps + Watts/Volts. 325/120 = 2.7 amps. A #14 copper conductor is rated at 15 amps. This is the minimum size wiring that is used for house circuits loads. The breaker for this size wiring will be a 15 amp breaker.
50 watt equals less than 1/2 amp current flow at 120 volts so you can have 30 light on a 15amp breaker or 40 on a twenty amp breaker.
Take the plug in your hand, and insert the plug into the wall outlet.
The smallest size breaker is a 15 amp and with a #14 wire which has a capacity for 15 amps and a 120 volt source, this combination will give you the capacity up to 1800 watts. W = A x V, 120 x 15 = 1800.
The formula to use is I = W/E, assuming that the single breaker is delivering 120 volts, the amperage to the circuit is 16.6 amps. A continuous load on a 20 amp breaker has to be reduced to 80% according to the electrical code. 20 x .8 = 16. So to answer the question, yes, a 20 amp breaker will support a 2000 watt load at 120 volts.
Each baseboard heater will draw a little over 4 amps at 120 volts or 2 Amps at 240 volts. The total number of baseboards on a circuit will draw the sum of these amps. Keep the load under 80% of the amperage rating of the breaker.
15 amp
20 amp is perfect, 15 is fine
20 amp breaker 12 gauge wire assuming its 120 volt
Assuming this is standard house voltage of 120 VAC your 4500 Watt heater will draw about 37.5 amps. You would normally install a 50A breaker and would have to run 8 gauge wire.
Yes, a 1500 watt heater operating on 120 volts has an amperage of A = W/V. Amps = Watts/Volts = 1500/120 = 12.5 amps. It is not a recommended practice to do so.
50 watt equals less than 1/2 amp current flow at 120 volts so you can have 30 light on a 15amp breaker or 40 on a twenty amp breaker.
At 120 Volts your heater is drawing about 12.5 Amps. If your house only had 120 V then it would draw 13.6 Amps. Problems could be 1.) Other devices on same circuit. 2.) Internal short in the heating element that reduced resistance and increased current. 3.) Faulty heater in that it really delivers more than 1500 watts because heating elements are less resistance than rating would require. 4.) Faulty breaker. These are in order of likelihood. You are close enough to the limit of the breaker that it could be any of these things. Typically you should not exceed 80% of the breaker rating and that is just where you are operating.
If your power source is 120 V then 8000/120 = 66.7 Amps. If operated at 240 V then it is 33.3 Amps. In the first case you would need 3 AWG and in the second 8 AWG.
Current (amps)=Watts/Volts =2000/120 =16.75 =16.75 amps
10 Amps. Amps=Watts/Volts
Take the plug in your hand, and insert the plug into the wall outlet.
Answer for USA, Canada and countries running a 60 Hz supply service.US NEC: 4800 watts is 40 amps at 120 volts, or 20 amps at 240 volts. This can be no more than 80% of the breaker's rated value. You need a 50 amp breaker for 120 volt operation, though 120 volt operation is not advised. You need a 30 amp breaker for 240 volt operation.As always, if you are in doubt about what to do, the best advice anyone should give you is to call a licensed electrician to advise what work is needed.Before you do any work yourself,on electrical circuits, equipment or appliances,always use a test meter to ensure the circuit is, in fact, de-energized.IF YOU ARE NOT ALREADY SURE YOU CAN DO THIS JOBSAFELY AND COMPETENTLYREFER THIS WORK TO QUALIFIED PROFESSIONALS.